2,4-Diacetylphloroglucinol
2,4-Diacetylphloroglucinol is a polyketide antibiotic produced by Pseudomonas fluorescens. 2,4-Diacetylphloroglucinol exhibits broad-spectrum toxicity against various organisms such as bacteria, fungi, oomycetes, and nematodes. 2,4-Diacetylphloroglucinol can also inhibit plant pathogens and affect the root development of tomato seedlings[3].